Pea puffer Tank Mates

Short answer: the best pea puffer tank mates are . Pea puffers need 72โ€“82 ยฐF (22โ€“28 ยฐC), pH 6.8โ€“8 and at least 5 gallons.

Carinotetraodon travancoricus ยท rated against 71 species ยท check your own combination

Pea puffer care at a glance

Adult size1.2 in (3 cm)
Minimum tank5 US gallons
Temperature72โ€“82 ยฐF (22โ€“28 ยฐC)
pH6.8โ€“8
TemperamentAggressive
Swims inAll levels
Group sizeCan be kept singly or in pairs
Care levelModerate

Sources: Seriously Fish ยท FishBase. Last reviewed 2026-11-04.

gallon tank

โœ… Compatible tank mates (0)

โš ๏ธ Possible with caution (6)

โŒ Not recommended (65)

How many pea puffers per tank?

5 gal 10 gal 20 gal 29 gal 40 gal 55 gal 75 gal โ€” see what else fits with our stocking calculator.

FAQ

What fish can live with pea puffers?

Good matches include . They share a temperature range with pea puffers (72โ€“82 ยฐF (22โ€“28 ยฐC)), are a similar temperament, and are not big enough to eat each other or nip fins.

What fish should not live with pea puffers?

Avoid Cherry shrimp, Betta fish, Dwarf gourami, Guppy, Bristlenose pleco, Fancy goldfish.

What size tank do pea puffers need?

We recommend at least 5 US gallons for one pea puffer, more if you add tank mates.

Can pea puffers live alone?

Yes. Pea puffers do not need a group, though they can be kept with compatible tank mates.

Note: Compatibility depends on individual temperament, tank size, decor and how fish are introduced. Our verdicts use conservative rules applied to published care data (see methodology). They are guidance, not a guarantee. Quarantine new fish and watch for chasing, torn fins or hiding.